package demo3;

/**
 * @Author 12629
 * @Description：
 */
class B {
    public B() {
        func();
    }
    public void func() {
        System.out.println("B::func()....");
    }
}
class D extends B {
    private int num = 1;
    public void func() {
        System.out.println("D::func()...."+ num);
    }
}
public class Test {
    public static void main(String[] args) {
        D d = new D();
        d.func();
    }
}
